baber/WOPTO huggingface dataset:
Patent GB-287673-A (GB)
Title: Improved method of and apparatus for securing secrecy in telephonic communications
IPC: H04K1/06
Filed: 1927-01-28
Abstract: 287,673. Carr, W. B. H. Jan. 28, 1927. Systems with telephonic receiving arrangements secret signalling by recording and re-transmitting signals with variation of order or speed.-A signalling system comprises means for breaking up a message into sections and means for reversing the order of the signal modulations or elements in each section during a recording or a collecting process. A microphone is connected to an electromagnet C which records the signals on a tape B which is wound from a drum H<1> to a second drum H<2>. Collecting electromagnets D - - D<3> are rotated at twice the speed of the tape so that the sections into which the message is broken by the collecting- magnets are transmitted in reverse direction. At the receiving end the recording electromagnet is connected to the aerial or transmission line, and, when the collecting electromagnets are synchronized, the signal is restored to its proper form. Alternatively a plurality of revolving recording electromagnets is employed and a single fixed collecting electromagnet. According to a modification (Figs. 2 - - 5, not shown) an endless tape passes round two pulleys, and, for example, in the sending apparatus two collecting electromagnets move at three times the speed of the tape and at the receiving end four collecting electromagnets move at one and a half times the speed of the tape. Alternatively a fixed record mav be used with rotating, reciprocating or helically moving collecting and recording electromagnets. Synchronizing signals are sent during the intervals between the transmission of successive portions of the record. For duplex working a sending and receiving apparatus is used at each station, or one set of apparatus with electric and mechanical arrangements for conversion is employed. According to another modification (Figs. 6 - - 9, not shown), tapes are embedded longitudinally in pistons working in open-ended cylinders and connected in the manner of a multicylinder engine to a common crank shaft. An electromagnet mounted in the wall of each cylinder operates alternately as a recording and collecting electromagnet, the connections being effected by distributors mounted on, or driven by the crank shaft. A six-cylinder apparatus is used when frequent synchronizing signals are not required, and eight cylinders when such signals are required. A mechanical record, such as a gramophone, or an electro-optical record may be employed. To obtain additional secrecy the speed of transmission of the modulations or the lengths of the successive sections may be varied.
Patent GB-469565-A (GB)
Title: Improvements in or relating to sparking plugs
IPC: H01T13/16
Filed: 1936-01-27
Abstract: 469,565. Sparking - plugs. ALBY, P. L. Jan. 27, 1936, No. 2584. Convention date, Jan. 25, 1935. [Class 7 (iv)] Throughout its whole length the central electrode is hollow and spaced apart from the surrounding insulation. Its lower end is closed by a sparking - terminal k. Air drawn through passages t, circulates around and through the electrode, transference taking place through an opening w. Circulation may be under atmospheric influence only, or there may be a connection to the engine intake or exhaust. The cooling-air circuit may be closed by a cap S. In a modification there is no opening w, and the hollow electrode and a reservoir at the upper end are filled with fluid. A ball-valve in the upper surface of the reservoir produces a whistling effect if overheating is taking place. The lower end of the insulator c extends beyond the electrode head and terminal h<1>, k, and is not coaxial with the casing, thus providing additional support for the terminal n. A metallic strip extends from the insulated electrode sufficiently near to the casing for a spark to pass if the plug electrodes are too widely separated.
Patent GB-300834-A (GB)
Title: Improvements in playing cards
IPC: A63F1/02
Filed: 1928-01-26
Abstract: 300,834. Prager, M. Jan. 26, 1928. Cards, playing.-The front of a playing card of the kind consisting of a single sheet of celluloid or like material is provided with a face coating to render the card wholly or almost wholly non-transparent, the representation of the playing card being directly printed or otherwise applied to the face coating.
Patent GB-971286-A (GB)
Title: Improvements in or relating to operation and fault indication for unidirectional conducting devices
IPC: H02H7/127
Filed: 1963-01-22
Abstract: 971,286. Protective arrangements. BROOKHIRST IGRANIC Ltd. Jan. 22, 1963 [April 20, 1962], No. 2687/63. Heading H2K. Unidirectional conducting devices are provided with means indicating whether they are operating normally, are short circuited or are open circuit. As applied to a rectifying arrangement employing silicon controlled rectifiers SCR1, SCR2, a resistor R1 is connected in series with each rectifier SCR1 and the load 5, the potential across each resistor being applied to two indicators comprising a forwardly connected diode 6 and green lamp GL1 and a reversed diode 7 and red lamp RL1 respectively. During normal operation the potential across R1 is unidirectional, diode 6 conducts, diode 7 does not and only the green lamp is illuminated. If the rectifier is short circuited an alternating potential appears across the resistor R1, both diodes conduct and both lamps are illuminated. If the rectifier is open circuit neither lamp is illuminated. In a simple embodiment (Fig. 2, not shown), a neon lamp is connected across the rectifier. On normal operation one electrode only of the neon is illuminated. Upon short circuit the neon is not illuminated but if the rectifier becomes open circuit both electrodes are illuminated.
Patent GB-779008-A (GB)
Title: Uranium recovery process
IPC: C22B60/02
Filed: 1953-01-30
Abstract: Uranium is recovered from the leached mud of the Clinker Process for the production of phosphoric acid (defined below), by drying the leached mud, grinding it and roasting it at a temperature such as to render the uranium soluble in a dilute solution of a strong mineral acid, digesting the roasted material with such a solution and washing the acid and the solubilized uranium values from the digested material with water.  The Clinker Process is one where ground phosphate rock is acidulated with substantially anhydrous sulphuric acid to convert all the phosphate to phosphoric acid after which the acidulated material is calcined to produce a relatively dry solid, from which the phosphoric acid is leached with water to leave a mud consisting of calcium sulphate together with the uranium values from the original phosphate rock.  Such a process is claimed in Specification 636,964.  The dried mud is preferably crushed to pass a 12 mesh Tyler sieve and is suitably roasted at a temperature between 1245 DEG  and 1475 DEG C. depending on the individual characteristics of the mud and whether the heating is effected in a stationary or agitated ed.  A rotary calciner is preferred and a roasting period of 15 minutes is suitable.  The roasted material may then be treated with the dilute solution of a strong mineral acid e.g. sulphuric, nitric, hydrochloric or phosphoric, the concentration of the acid being preferably between 2 and 14 per cent by weight of the leach liquor and the leach liquor being employed preferably in amounts between 50 and 100 per cent by weight of the dry roast.  The preferred leaching time is one half to two hours after which the mud is filtered and washed to recover the solubilized uranium values. Examples compare the effect of calcining in a stationary or agitated bed at various temperatures, the length of roasting period employed and the effect of sulphuric acid concentration.  According to a preferred procedure the mud treated was a leached calcium sulphate residue from phosphate rock which had been acidulated with the stoichiometric quantity of 98 per cent sulphuric acid based on the calcium content, and calcined at a temperature above 350 DEG F. prior to leaching.  The mud obtained after leaching was dried and ground, and contained 0.01 per cent by weight of uranium as U3O8.  The dried mud was treated in a rotary calciner for 50 minutes at a maximum temperature of 1425 DEG F. and the roast was treated with hot 4 per cent sulphuric acid for two hours, after which it was filtered and washed whereby 70 per cent of the uranium was recovered in the filtrate.
Patent GB-564593-A (GB)
Title: An improvement in or relating to apparatus for photographically reproducing drawings
IPC: G03B27/18
Filed: 1943-02-19
Abstract: 564,593. Photographic copying apparatus. BARRON, C. A., and BARRON, H. D. Feb. 19, 1943, No. 2769. [Class 98 (i)] Apparatus for photographically reproducing drawings is characterised in that a glazed frame, forming the front of a box or casing containing a series of incandescent light bulbs and a diffusing screen is made in two glazed parts a<1> and a<2>, hinged along the edge b, catches c and pins d being provided to enable the frame parts to be locked together. Either side of the frame may be exposed to the front. Opening of part a<2> is made against springs e, and a slotted catch f acts to limit the opening movement and hold the two parts in the open position. The part a<1> is provided with pins g journalled in the uprights h<1> of the front of the box h containing light bulbs i and a diffusing screen j. One pin g extends through upright h<1> to carry a pulley k over which passes a cord m whose ends are connected respectively to a weight n and to a hand lever p capable of being held in either of two positions by a quadrant r. When the lever p is forward the frame is vertical with part a<2> to the front, and when backward the frame is vertical with part a<1> to the front. In a modification, the movements of the frame may be made directly by hand. The arrangement permits of two drawings being loaded back to back so that both may be photographed with a single loading operation. Specifications 380,930 and 414,164 are referred to.
Patent GB-563916-A (GB)
Title: Improvements in machines for winding wire upon a core
IPC: H01R43/00
Filed: 1943-02-19
Abstract: 563,916. Covering cores by winding. BURTON, J. L., and PERKINS, A. E. Feb. 19, 1943, No. 2820. [Class 109] A machine for winding wire on to the core of an electric conductor in which the wire is drawn from a bobbin 8 mounted upon a flyer 7 which rotates about and traverses along the conductor, is provided with means for effecting a quick return of the flyer at the end of its traverse. The conductor is held by a chuck 26 and the exposed wires c are held near the point of winding by jaws 28a, 30a, the position of which jaws can be adjusted lengthways of the conductor. The traverse of the flyer 7 is obtained from a spiral cam 69, a cam lever 71 having one pin engaging the cam 69 and a second pin engaging a recess 76 on the flyer drum. The pin on the lever 71 is held in engagement with the cam 69 by a spring 74 and the cam terminates as at 69a so that. at the end of the traverse of the flyer the lever is swung over to return the flyer quickly to its original position. A device for cutting the covering wire at the end of the winding operation is provided and comprises a blade 11 operated by a bar 12 and spring-pressed plunger 52. The plunger is normally held retracted by a disc 48 rotating with the cam 69. At the end of the traverse of the flyer, a hole in the plate 48 registers with the plunger 52, and the blade is actuated.to cut the wire. The covering wire in its path from the bobbin to the conductor core passes between the head of a pin 38 and a spring-controlled plunger 41 slidable on the pin and thence to the cutter.
Patent GB-751374-A (GB)
Title: Improvements in or relating to vortex furnaces
IPC: F23C3/00
Filed: 1954-01-29
Abstract: 751,374. Pulverulent-fuel cyclone furnaces. BABCOCK & WILCOX, Ltd. Jan. 29, 1954 [Jan. 30, 1953], No. 2820/54. Addition to 731,554. Class 51(1). The furnace according to the parent Specification is modified by making the slag screen extend over only a part of the furnace chamber to one side of the fuel receiving zone. As shown in Fig. 4 a cyclone furnace having fuel and primary air inlets 13, secondary air inlets 12 and a gas outlet 10, is formed with a throat 19 of frusto-conical shape, the inner portions of the tubes 11 forming the throat being extended so as to form a slag screen. In a modification, Fig. 1, the tubes 11 form a slag screen over their entire lengths. In a further modification the throat is formed of helicallydisposed tubes the inner portions of which are spaced apart so as to form a slag screen extending to the end of the furnace chamber remote from the gas outlet.
Patent GB-281896-A (GB)
Title: A process for treating, drying and semi-drying fats and oils
IPC: C11C1/04
Filed: 1927-02-01
Abstract: 281,896. Petroff, G. Feb. 1, 1927. Fatty acids; soaps; fats and fatty oils.-Non- drying fatty acids and their salts are obtained from drying and semi drying fats and oils, e.g. linseed, sunflower, fish, and castor oils by mixing them with aromatic hydrocarbons or phenols, or hydrogenated hydrocarbons or phenols in amount not exceeding 15 per cent and treating the mixture with concentrated sulphuric acid in amount not exceeding 15 per cent. After reduction of the iodine value and hydrolysis of the acid has taken place the excess hydrocarbons are distilled off and the neutral glycerides obtained are split in the usual manner in the presence of sulphoacids of high molecular weight. 90 parts sunflower oil are mixed with 5 parts naphthalene and 5 parts benzene and treated with 10 parts sulphuric acid Sp. gr. 1.84. The product after separation of excess acid and solvent was split by treatment with steam for 10-12 hours in the presence of naphtha sulphonic acids, octo-hydroanthracene sulphonic acid, cymenesulphonic acid, or aromatic sulpho-fatty acids. Partial polymerization of the unsaturated fatty acids is said to take place.
Patent GB-213226-A (GB)
Title: Embroidering machine
IPC: D05C7/00
Filed: 1924-02-05
Abstract: 213,226. Singer Manufacturing Co., (Assignees of Myers, W.). March 24, 1923, [Convention date]. Universal - feed sewing - machines; cords and the like, attaching. - Change-speed mechanism is provided for varying the speed of rotation about the needle of the guide for the covering thread. The machine comprises known stitch-forming and feeding mechanism including a hook needle 11 reciprocated from a main shaft 6 and a feed-foot connected to a cylinder 9 the rotation of which is manually controlled by a handle 21 having link and gear connections with a shaft 20 geared to the cylinder 9. The spool-carrier 25 and guide 26 for the surface thread are mounted on a sleeve 24 connected by a train of gears to a sleeve 35 loosely surrounding the shaft 20 and geared by differential gearing 38, 39, 42 to a sleeve 43 also loose on the shaft 20. Separate gear-wheels 47 - - 50 spaced by washers are mounted loosely on the main-shaft 6 and are adapted to be selectively coupled therein by a key 54 located in a slot 55 in the shaft and connected to a collar 58 the position of which is adjusted by a hand-actuated lever 64. The gear-wheels 47-50 are in mesh with wheels 74 - - 77 mounted on a counter-shaft 73 and locked together by bolts 78. The gearwheel 74 is also in mesh with a gear-wheel 45 on the sleeve 43 so that by coupling one or other of the wheels 47 - - 50 to the shaft 6 four speeds of rotation may be given to the sleeve 43 and to the guide 26.
Patent GB-1494554-A (GB)
Title: Electrophotographic process and apparatus
IPC: G03G5/047
Filed: 1975-01-23
Abstract: 1494554 Electro-photography MITSUBISHI DENKI KK 23 Jan 1975 [23 Jan 1974] 3030/75 Heading G2H As an electrostatic latent image is formed in photo-conductive layer 116 and transferred to copy sheet 20, in response to imagewise light L, blocking layer 118 prevents undesired charge carriers from transparent electrode 114 from entering layer 116 and degrading the latent image. Preferably layer 118 is of polyvinyl carbazole, and behaves as an insulating layer during imaging with visible light. The layer 118 should be 0À03 microns thick or more, ranging upwards to 50 microns. After use flood illumination with ultraviolet light makes both layer 118 and layer 116 conductive, and erases the image formed. Alternatively the layer 118 may be of a photo-conductive material reversed in polarity from the layer 116, in which case a reverselybiased P-N junction is formed, and prevents undesired charge carriers from migrating from electrode 114 into layer 116.
Patent GB-620919-A (GB)
Title: Improvements in the treatment of viscose products
IPC: D01F11/02
Filed: 1947-01-31
Abstract: Regenerated cellulose products prepared from viscose are desulphurized with a solution of a metal-free desulphurizing agent in demineralized water, and then rinsed one or more times with demineralized water.  The freshly precipitated products may be rinsed with ordinary, softened or demineralized water before desulphurization.  The desulphurizing agent may be ammonium sulphide and the water may be demineralized by distillation or by treatment with an ion-exchange resin.  Comparative examples are given.
Patent GB-1178302-A (GB)
Title: Improvements in or relating to Gaming Machines.
Inventor: SHEPPARD ANTHONY
IPC: G07F17/32
Filed: 1967-01-20
Abstract: 1178302 Chance apparatus MICHAEL BECKETT Ltd 20 Jan 1967 3121/67 Index G4V H8  In a gaming machine of the "fruit machine" kind shown diagrammatically in Fig. 1 a coin operated switch 11 when closed triggers three timing circuits 12, 13 and 14 each in the form of a monostable two state circuit. The timing circuits are triggered substantially simultaneously and have different time constants so that they return to their stable states in succession after triggering. The timing circuits are connected to pulse generators 15, 16, 17 each in the form of a multi-vibrator and each activated during the period that its associated timer is in its unstable state. The pulse generator outputs are applied to respective symbol sequencing counters 18, 19, 20. To display symbols in the usual manner connections are made between the different count stages of each counter and lamps 21 associated with graphical representations 22 in transparency form and optical systems 23 so that as each counter is sequenced successive graphical representations are projected into a display panel 24. An analyser 28 is connected to the outputs of the counters to generate a prize payment pulse and control the pay-out mechanism. In addition facilities for a jack-pot payment may be included. Transistor circuits for the various timers, pulse generators and other units are described with reference to Figs.2-15 (not shown). Modifications including alternative hold controls and payout counter devices are also described with reference to Figs.16-28 (not shown).
Patent GB-671032-A (GB)
Title: Improvements in or relating to paper making machines and methods of making paper
IPC: D21F3/06
Filed: 1948-02-03
Abstract: 671,032. Wet presses of paper-making machines. BELOIT IRON WORKS. Feb. 3, 1948 [Sept. 10, 1947], No. 3135/48. Class 96. A paper-making machine includes a horizontal press P<SP>1</SP>, Fig. 1, having a plain upper roll 18 and two suction press rolls 26 and 27 whose diameters are about half that of the roll 18, rotatably mounted on pivoted arms 29 and 36 movable by jacks 32 and 38 to and from the roll 18 to vary the pressures at horizontally aligned nips N<SP>1</SP> and N<SP>2</SP>, a felt 45, which receives the moist paper 46 from the wire 17, being passed through the nip N<SP>1</SP> and around the roll 26, a second felt 52 being trained around the roll 27 and through the nip N<SP>2</SP> so that the paper is carried through the nip N<SP>1</SP>, against the lower periphery of the.roll 18 and then through the nip N<SP>2</SP>. Arms 29 and 36 may be provided at each end of the rolls 26 and 27. The press P<SP>1</SP> may be followed by a press P<SP>2</SP>, Fig. 2, having outer rolls 58 and 57 mounted on rocking arms 60 and 59 and pressed towards a central roll 55, the paper being carried without an open draw from the press P<SP>1</SP> to the press P<SP>2</SP> by the felt 52, being picked therefrom by a felt 81 and carried through the nip N<SP>3</SP> between rolls 58 and 55, which thus act as a reverse press. The paper adheres to the roll 55 and then passes through the nip N<SP>4</SP> between the bare and smooth rolls 55 and 57 which function as a smoothing press.
Patent GB-175265-A (GB)
Title: Improvements in cinematographic film strips
IPC: A47G23/02
Filed: 1921-02-10
Abstract: 175,265. PathÚ CinÚma, Anciens Etablissements PathÚ FrÞres. Feb. 10, 1921, [Convention date]. Kinematograph picture films. -A film is so perforated that the feeding mechanism ceases to actuate the film at certain predetermined positions, for example when a title is projected on to the screen. The perforations 3 and 4 are longer than the range of the feeding device which is represented by the arrow 5, so that the film is stationary in the position shown. The feeding device will again engage with the perforations 6 when a slight traction is applied to the film.
Patent GB-1049131-A (GB)
Title: Chromating of aluminium surfaces
IPC: C23C22/44
Filed: 1965-01-25
Abstract: An aluminium surface is chromated using a solution at a temperature from 12 to 160 DEG F., having a pH of between 1.1 and 2.3 and containing 0.5 to 10 g./l. hexavalent chromium, 1.6 to 27 g./l. of the fluoride ions and from 0.1 to 4.0 g./l. of tungsten in the form of tungstate, and in addition to the fluoride ions aluminium fluorides having the formula AlFx, where x is an integer from 1 to 6, in an amount equivalent to 2.2 to 32 g./l. A/F3.  The fluoride ions may be introduced as hydrofluoric, fluosilicic, and fluoboric acid, and the sodium, potassium or ammonium salts thereof.  The tungsten may be present as tungstic acid and its sodium, potassium or ammonium salts.  The solution may also contain nitrates and sulphates.  In addition to replenishing the solution, part of the solution is circulated through a strongly acidic cation exchange resin as described in Specification 846,363.  The solution may be applied to the aluminium by brushing, spraying, dipping or by atomizing the solution on to the surface as described in Specification 863,098.
Patent GB-1241148-A (GB)
Title: Motor vehicle having collapsible steering column
IPC: B62D1/19
Filed: 1970-01-22
Abstract: 1,241,148. Collapsible steering columns. FORD MOTOR CO. Ltd. 22 Jan., 1970 [5 March, 1969], No. 3231/70. Heading B7H. A steering column 1 having a corrugated energy absorbing portion 2 is secured to a dash panel 4 by a releasable bracket 5. The bracket 5 comprises a plate 6 fixed to the column 1 and three members 7 having U-shaped grooves, Fig. 4b (not shown), engaging slots in the plate. Parts 9 of the plate 6 are bent around projections (13), Fig. 9 (not shown), and crimped to reduce clearance between the walls of the slots and members 7. When the steering wheel 3 is subject to a forward impact, in excess of a predetermined value, the plate 6 moves relatively to the members 7, Fig. 7 (not shown), such that they are released by the plate 6 which is freed from the panel 4. The corrugated portion 2 is then free to collapse axially.